package edu.dayu.demoNetty1;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.util.CharsetUtil;


public class NettyClientHandler extends ChannelInboundHandlerAdapter {
    // 当通道就绪 就会 触发该方法
    @Override
    public void channelActive(ChannelHandlerContext ctx) throws Exception {
        System.out.println("client"+ctx);
        ctx.writeAndFlush(Unpooled.copiedBuffer("hello,server", CharsetUtil.UTF_8));
    }

    // 当通道有读取事件时 会触发
    @Override
    public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
        ByteBuf buffer = (ByteBuf) msg;
        System.out.println("服务端的信息："+buffer.toString(CharsetUtil.UTF_8));
        System.out.println("服务器的地址"+ctx.channel().remoteAddress());
    }

    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
        cause.printStackTrace();
        ctx.close();
    }
}
